diff --git a/.changeset/shy-exports-remain.md b/.changeset/shy-exports-remain.md
new file mode 100644
index 00000000000..e961932cf4c
--- /dev/null
+++ b/.changeset/shy-exports-remain.md
@@ -0,0 +1,6 @@
+---
+'@tanstack/router-utils': patch
+'@tanstack/router-plugin': patch
+---
+
+Keep route exports intact under automatic code splitting: exported classes and `export { name as alias }` specifiers are retained like other exported route options, and the overload signatures of a function moved into the shared module no longer stay behind to shadow its import. Re-exports of the same name from different sources, such as `export { wrap as allowed } from './server'` next to `export { wrap as denied } from './client'`, now resolve to their own sources in the Start compiler.
diff --git a/packages/router-plugin/src/core/code-splitter/compilers.ts b/packages/router-plugin/src/core/code-splitter/compilers.ts
index 89cdae41add..7fc5f249078 100644
--- a/packages/router-plugin/src/core/code-splitter/compilers.ts
+++ b/packages/router-plugin/src/core/code-splitter/compilers.ts
@@ -335,6 +335,9 @@ function findExportedSharedBindings(
  * Remove declarations of shared bindings from the AST.
  * Handles both plain and exported declarations, including destructured patterns.
  * Removes the entire statement if all bindings in it are shared.
+ * TypeScript overload signatures of a shared function are removed along with
+ * its implementation: left behind, they read as a local declaration of the
+ * same name and shadow the import from the shared module.
  */
 function removeSharedDeclarations(ast: t.File, sharedBindings: Set<string>) {
   ast.program.body = ast.program.body.filter((stmt) => {
@@ -351,7 +354,10 @@ function removeSharedDeclarations(ast: t.File, sharedBindings: Set<string>) {
       })
       // If no declarators remain, remove the entire statement
       if (decl.declarations.length === 0) return false
-    } else if (t.isFunctionDeclaration(decl) && decl.id) {
+    } else if (
+      (t.isFunctionDeclaration(decl) || t.isTSDeclareFunction(decl)) &&
+      decl.id
+    ) {
       if (sharedBindings.has(decl.id.name)) return false
     } else if (t.isClassDeclaration(decl) && decl.id) {
       if (sharedBindings.has(decl.id.name)) return false
@@ -1033,6 +1039,18 @@ export function compileCodeSplitVirtualRoute(
                 )
               }
 
+              splitMeta.shouldRemoveNode = false
+              splitMeta.localExporterIdent = splitNode.id.name
+            } else if (t.isClassDeclaration(splitNode)) {
+              // declared as `class Layout extends React.Component {}`; like a
+              // function declaration it stays in place and is exported under
+              // the split name
+              if (!splitNode.id) {
+                throw new Error(
+                  `Class declaration for "${SPLIT_TYPE}" must have an identifier.`,
+                )
+              }
+
               splitMeta.shouldRemoveNode = false
               splitMeta.localExporterIdent = splitNode.id.name
             } else if (
@@ -1166,6 +1184,52 @@ export function compileCodeSplitVirtualRoute(
           ])
         })
 
+        // Exported split values stay in the reference file, so `removeExports`
+        // dropped their declarations from this module. Another split node in
+        // the same group may still refer to one of them (`loader: () =>
+        // Layout.name` next to an exported `Layout` component), so import those
+        // from the reference file.
+        if (knownExportedIdents.size > 0) {
+          programPath.scope.crawl()
+          const unresolvedExportedIdents = new Set<string>()
+          programPath.traverse({
+            ReferencedIdentifier(identPath) {
+              const { name } = identPath.node
+              if (
+                knownExportedIdents.has(name) &&
+                !identPath.scope.getBinding(name)
+              ) {
+                unresolvedExportedIdents.add(name)
+              }
+            },
+          })
+
+          if (unresolvedExportedIdents.size > 0) {
+            const [importPath] = programPath.unshiftContainer(
+              'body',
+              t.importDeclaration(
+                [...unresolvedExportedIdents].map((name) =>
+                  t.importSpecifier(t.identifier(name), t.identifier(name)),
+                ),
+                t.stringLiteral(
+                  removeSplitSearchParamFromFilename(opts.filename),
+                ),
+              ),
+            )
+
+            importPath.traverse({
+              Identifier(identPath) {
+                if (
+                  identPath.parentPath.isImportSpecifier() &&
+                  identPath.key === 'local'
+                ) {
+                  refIdents.add(identPath)
+                }
+              },
+            })
+          }
+        }
+
         // convert exports to imports from the original file
         programPath.traverse({
           ExportNamedDeclaration(path) {
@@ -1622,14 +1686,22 @@ function hasExport(ast: t.File, node: t.Identifier): boolean {
           })
         }
 
-        // declared as `function loaderFn() {}`
-        if (t.isFunctionDeclaration(path.node.declaration)) {
+        // declared as `function loaderFn() {}` or `class Layout {}`
+        if (
+          t.isFunctionDeclaration(path.node.declaration) ||
+          t.isClassDeclaration(path.node.declaration)
+        ) {
           if (t.isIdentifier(path.node.declaration.id)) {
             if (path.node.declaration.id.name === node.name) {
               found = true
             }
           }
         }
+      } else if (!path.node.source) {
+        // declared as `export { loaderFn }` or `export { loaderFn as load }`
+        if (hasLocalExportSpecifier(path.node, node.name)) {
+          found = true
+        }
       }
     },
     ExportDefaultDeclaration(path) {
@@ -1640,8 +1712,11 @@ function hasExport(ast: t.File, node: t.Identifier): boolean {
         }
       }
 
-      // declared as `export default function loaderFn() {}`
-      if (t.isFunctionDeclaration(path.node.declaration)) {
+      // declared as `export default function loaderFn() {}` or `export default class Layout {}`
+      if (
+        t.isFunctionDeclaration(path.node.declaration) ||
+        t.isClassDeclaration(path.node.declaration)
+      ) {
         if (t.isIdentifier(path.node.declaration.id)) {
           if (path.node.declaration.id.name === node.name) {
             found = true
@@ -1654,6 +1729,22 @@ function hasExport(ast: t.File, node: t.Identifier): boolean {
   return found
 }
 
+/**
+ * Whether an `export { ... }` statement without a source exports the given
+ * local binding, under its own name or an alias.
+ */
+function hasLocalExportSpecifier(
+  node: t.ExportNamedDeclaration,
+  name: string,
+): boolean {
+  return node.specifiers.some(
+    (specifier) =>
+      t.isExportSpecifier(specifier) &&
+      t.isIdentifier(specifier.local) &&
+      specifier.local.name === name,
+  )
+}
+
 function removeExports(ast: t.File, node: t.Identifier): boolean {
   let removed = false
 
@@ -1687,8 +1778,11 @@ function removeExports(ast: t.File, node: t.Identifier): boolean {
               }
             }
           })
-        } else if (t.isFunctionDeclaration(path.node.declaration)) {
-          // declared as `export const loaderFn = () => {}`
+        } else if (
+          t.isFunctionDeclaration(path.node.declaration) ||
+          t.isClassDeclaration(path.node.declaration)
+        ) {
+          // declared as `export function loaderFn() {}` or `export class Layout {}`
           if (t.isIdentifier(path.node.declaration.id)) {
             if (path.node.declaration.id.name === node.name) {
               path.remove()
@@ -1696,6 +1790,24 @@ function removeExports(ast: t.File, node: t.Identifier): boolean {
             }
           }
         }
+      } else if (!path.node.source) {
+        // declared as `export { loaderFn }` or `export { loaderFn as load }`
+        if (hasLocalExportSpecifier(path.node, node.name)) {
+          const specifiers = path.node.specifiers.filter(
+            (specifier) =>
+              !(
+                t.isExportSpecifier(specifier) &&
+                t.isIdentifier(specifier.local) &&
+                specifier.local.name === node.name
+              ),
+          )
+          if (specifiers.length === 0) {
+            path.remove()
+          } else {
+            path.node.specifiers = specifiers
+          }
+          removed = true
+        }
       }
     },
     ExportDefaultDeclaration(path) {
@@ -1705,8 +1817,11 @@ function removeExports(ast: t.File, node: t.Identifier): boolean {
           path.remove()
           removed = true
         }
-      } else if (t.isFunctionDeclaration(path.node.declaration)) {
-        // declared as `export default function loaderFn() {}`
+      } else if (
+        t.isFunctionDeclaration(path.node.declaration) ||
+        t.isClassDeclaration(path.node.declaration)
+      ) {
+        // declared as `export default function loaderFn() {}` or `export default class Layout {}`
         if (t.isIdentifier(path.node.declaration.id)) {
           if (path.node.declaration.id.name === node.name) {
             path.remove()
diff --git a/packages/router-plugin/tests/code-splitter-exports.test.ts b/packages/router-plugin/tests/code-splitter-exports.test.ts
new file mode 100644
index 00000000000..b79bbee54c4
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter-exports.test.ts
@@ -0,0 +1,107 @@
+import { mkdir, mkdtemp, rm, writeFile } from 'node:fs/promises'
+import path from 'node:path'
+import { createServer } from 'vite'
+import { describe, expect, it } from 'vitest'
+import { tanstackRouter } from '../src/vite'
+
+// Loads a route file through the Vite dev pipeline with automatic code
+// splitting on, then hands the module to the assertions while the server is
+// still up, so lazy route options can import their split chunks.
+async function withSplitRoute(
+  routeSource: string,
+  assert: (routeModule: Record<string, any>) => Promise<void> | void,
+) {
+  const root = await mkdtemp(path.join(__dirname, '.split-exports-'))
+  let server: Awaited<ReturnType<typeof createServer>> | undefined
+  try {
+    await mkdir(path.join(root, 'routes'))
+    await writeFile(
+      path.join(root, 'routes/__root.tsx'),
+      `import { createRootRoute } from '@tanstack/react-router'
+export const Route = createRootRoute({})`,
+    )
+    await writeFile(path.join(root, 'routes/page.tsx'), routeSource)
+    server = await createServer({
+      root,
+      configFile: false,
+      logLevel: 'silent',
+      plugins: [
+        tanstackRouter({
+          target: 'react',
+          autoCodeSplitting: true,
+          codeSplittingOptions: {
+            defaultBehavior: [['component'], ['loader']],
+          },
+          routesDirectory: './routes',
+          generatedRouteTree: './routeTree.gen.ts',
+        }),
+      ],
+      server: { middlewareMode: true },
+      appType: 'custom',
+    })
+    await assert(await server.ssrLoadModule('/routes/page.tsx'))
+  } finally {
+    await server?.close()
+    await rm(root, { recursive: true, force: true })
+  }
+}
+
+describe('route exports under automatic code splitting', () => {
+  it('keeps a shared function with overload signatures importable and aliased', async () => {
+    await withSplitRoute(
+      `
+import { createFileRoute } from '@tanstack/react-router'
+export function helper(value: string): string
+export function helper(value: number): number
+export function helper(value: string | number) { return value }
+export { helper as helperAlias }
+export const Route = createFileRoute('/page')({
+  component: () => null,
+  beforeLoad: () => helper('before'),
+  loader: () => helper(42),
+})`,
+      async (routeModule) => {
+        expect(routeModule.helper).toBeTypeOf('function')
+        expect(routeModule.helperAlias).toBe(routeModule.helper)
+        expect(routeModule.Route.options.beforeLoad()).toBe('before')
+        expect(await routeModule.Route.options.loader()).toBe(42)
+      },
+    )
+  }, 30_000)
+
+  it('retains an exported class component', async () => {
+    await withSplitRoute(
+      `
+import { createFileRoute } from '@tanstack/react-router'
+export class Layout { render() { return null } }
+export const Route = createFileRoute('/page')({
+  component: Layout,
+})`,
+      async (routeModule) => {
+        expect(routeModule.Layout).toBeTypeOf('function')
+        expect(routeModule.Route.options.component).toBe(routeModule.Layout)
+      },
+    )
+  }, 30_000)
+
+  it('retains route options exported under an alias', async () => {
+    await withSplitRoute(
+      `
+import { createFileRoute } from '@tanstack/react-router'
+function Layout() { return null }
+function loadLayout() { return 'loaded' }
+export { Layout as View, loadLayout as load }
+export const Route = createFileRoute('/page')({
+  component: Layout,
+  loader: loadLayout,
+})`,
+      async (routeModule) => {
+        expect(routeModule.View).toBeTypeOf('function')
+        expect(routeModule.Route.options.component).toBe(routeModule.View)
+        expect(routeModule.load).toBeTypeOf('function')
+        expect(routeModule.Route.options.loader).toBe(routeModule.load)
+        expect(routeModule.load()).toBe('loaded')
+      },
+    )
+  }, 30_000)
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias.tsx
new file mode 100644
index 00000000000..d83ed11be3a
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias.tsx
@@ -0,0 +1,17 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+function loadLayout() {
+  return { title: 'layout' }
+}
+export { Layout as View, loadLayout as load }
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: loadLayout,
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@component.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@component.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@errorComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@errorComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@notFoundComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@notFoundComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-alias@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group.tsx
new file mode 100644
index 00000000000..44733121857
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group.tsx
@@ -0,0 +1,15 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: () => Layout.name,
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@component.tsx
new file mode 100644
index 00000000000..a59c7afcf7c
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@component.tsx
@@ -0,0 +1,2 @@
+import { Layout } from 'retain-exports-class-shared-group.tsx?tsr-shared=1'
+export { Layout as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@errorComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@notFoundComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@shared.tsx
new file mode 100644
index 00000000000..292a043019f
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class-shared-group@shared.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react'
+import { Outlet } from '@tanstack/react-router'
+class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export { Layout }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class.tsx
new file mode 100644
index 00000000000..c1ce23ab537
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export const Route = createFileRoute('/_layout')({ component: Layout })
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@component.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@errorComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@notFoundComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-class@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group.tsx
new file mode 100644
index 00000000000..f43fc165129
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group.tsx
@@ -0,0 +1,13 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: () => Layout.name,
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@component.tsx
new file mode 100644
index 00000000000..c823341c352
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@component.tsx
@@ -0,0 +1,3 @@
+import { Layout } from 'retain-exports-function-shared-group.tsx?tsr-shared=1'
+import * as React from 'react'
+export { Layout as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@errorComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@errorComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@notFoundComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@notFoundComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@shared.tsx
new file mode 100644
index 00000000000..1d79a2edaf1
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/retain-exports-function-shared-group@shared.tsx
@@ -0,0 +1,10 @@
+import * as React from 'react'
+import { Outlet } from '@tanstack/react-router'
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+export { Layout }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads.tsx
new file mode 100644
index 00000000000..d78aa7e48ab
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads.tsx
@@ -0,0 +1,11 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+const $$splitComponentImporter = () =>
+  import('shared-function-overloads.tsx?tsr-split=component')
+import { lazyRouteComponent } from '@tanstack/react-router'
+import { createFileRoute } from '@tanstack/react-router'
+export { format as formatValue }
+export const Route = createFileRoute('/overloads')({
+  loader: () => format(42),
+  component: lazyRouteComponent($$splitComponentImporter, 'component'),
+})
+export { format } from 'shared-function-overloads.tsx?tsr-shared=1'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@component.tsx
new file mode 100644
index 00000000000..c25822c759e
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@component.tsx
@@ -0,0 +1,4 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+export { format as formatValue }
+const SplitComponent = () => <div>{format('label')}</div>
+export { SplitComponent as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@errorComponent.tsx
new file mode 100644
index 00000000000..97410b7cdcf
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@errorComponent.tsx
@@ -0,0 +1,2 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+export { format as formatValue }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@notFoundComponent.tsx
new file mode 100644
index 00000000000..97410b7cdcf
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@notFoundComponent.tsx
@@ -0,0 +1,2 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+export { format as formatValue }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@shared.tsx
new file mode 100644
index 00000000000..2de16944822
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-function-overloads@shared.tsx
@@ -0,0 +1,6 @@
+function format(value: string): string
+function format(value: number): string
+function format(value: string | number) {
+  return String(value)
+}
+export { format }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime.tsx
index 17d70ca9bda..ff367d446e1 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime.tsx
@@ -1,9 +1,4 @@
-import {
-  state,
-  createState,
-  createSeed,
-  increment,
-} from 'shared-runtime.tsx?tsr-shared=1'
+import { state, createSeed, increment } from 'shared-runtime.tsx?tsr-shared=1'
 const $$splitComponentImporter = () =>
   import('shared-runtime.tsx?tsr-split=component')
 import { lazyRouteComponent } from '@tanstack/react-router'
@@ -17,9 +12,5 @@ export const Route = createFileRoute('/shared-runtime')({
   },
   component: lazyRouteComponent($$splitComponentImporter, 'component'),
 })
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@component.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@component.tsx
index 5245f6d9eb8..1bb8fee6693 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@component.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@component.tsx
@@ -1,14 +1,5 @@
-import {
-  state,
-  createState,
-  createSeed,
-  Labels,
-} from 'shared-runtime.tsx?tsr-shared=1'
+import { state, createSeed, Labels } from 'shared-runtime.tsx?tsr-shared=1'
 const label = createComponentLabel()
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 function createComponentLabel() {
   console.log('shared-runtime:component')
   return Labels.component
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@errorComponent.tsx
index 03cacac5b39..4bfbd4ac664 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@errorComponent.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@errorComponent.tsx
@@ -1,7 +1,3 @@
-import { state, createState, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
+import { state, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@notFoundComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@notFoundComponent.tsx
index 03cacac5b39..4bfbd4ac664 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@notFoundComponent.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@notFoundComponent.tsx
@@ -1,7 +1,3 @@
-import { state, createState, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
+import { state, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@shared.tsx
index c53a7e15682..c79c1e70bfb 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@shared.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/1-default/shared-runtime@shared.tsx
@@ -6,6 +6,10 @@ function createSeed() {
   console.log('shared-runtime:seed')
   return { count: Count.Initial, label: Labels.component }
 }
+function createState(initialState: { count: number }): {
+  state: { count: number }
+  increment: () => number
+}
 function createState(initialState: { count: number }) {
   console.log('shared-runtime:state')
   return { state: initialState, increment: () => initialState.count++ }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias.tsx
new file mode 100644
index 00000000000..d83ed11be3a
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias.tsx
@@ -0,0 +1,17 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+function loadLayout() {
+  return { title: 'layout' }
+}
+export { Layout as View, loadLayout as load }
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: loadLayout,
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@component---errorComponent---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@component---errorComponent---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@loader.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@loader.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-alias@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group.tsx
new file mode 100644
index 00000000000..eb2f9c7b9fc
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group.tsx
@@ -0,0 +1,13 @@
+console.warn(
+  '[tanstack-router] These exports from "retain-exports-class-shared-group.tsx" will not be code-split and will increase your bundle size:\n- Layout\nFor the best optimization, these items should either have their export statements removed, or be imported from another location that is not a route file.',
+)
+import { Layout } from 'retain-exports-class-shared-group.tsx?tsr-shared=1'
+const $$splitLoaderImporter = () =>
+  import('retain-exports-class-shared-group.tsx?tsr-split=loader')
+import { lazyFn } from '@tanstack/react-router'
+import { createFileRoute } from '@tanstack/react-router'
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+})
+export { Layout } from 'retain-exports-class-shared-group.tsx?tsr-shared=1'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..a59c7afcf7c
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,2 @@
+import { Layout } from 'retain-exports-class-shared-group.tsx?tsr-shared=1'
+export { Layout as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@loader.tsx
new file mode 100644
index 00000000000..59a41a16be6
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@loader.tsx
@@ -0,0 +1,3 @@
+import { Layout } from 'retain-exports-class-shared-group.tsx?tsr-shared=1'
+const SplitLoader = () => Layout.name
+export { SplitLoader as loader }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@shared.tsx
new file mode 100644
index 00000000000..292a043019f
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class-shared-group@shared.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react'
+import { Outlet } from '@tanstack/react-router'
+class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export { Layout }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class.tsx
new file mode 100644
index 00000000000..c1ce23ab537
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export const Route = createFileRoute('/_layout')({ component: Layout })
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@component---errorComponent---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@loader.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-class@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group.tsx
new file mode 100644
index 00000000000..532f04615a1
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group.tsx
@@ -0,0 +1,14 @@
+console.warn(
+  '[tanstack-router] These exports from "retain-exports-function-shared-group.tsx" will not be code-split and will increase your bundle size:\n- Layout\nFor the best optimization, these items should either have their export statements removed, or be imported from another location that is not a route file.',
+)
+import { Layout } from 'retain-exports-function-shared-group.tsx?tsr-shared=1'
+const $$splitLoaderImporter = () =>
+  import('retain-exports-function-shared-group.tsx?tsr-split=loader')
+import { lazyFn } from '@tanstack/react-router'
+import * as React from 'react'
+import { createFileRoute } from '@tanstack/react-router'
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+})
+export { Layout } from 'retain-exports-function-shared-group.tsx?tsr-shared=1'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..c823341c352
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@component---errorComponent---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,3 @@
+import { Layout } from 'retain-exports-function-shared-group.tsx?tsr-shared=1'
+import * as React from 'react'
+export { Layout as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@loader.tsx
new file mode 100644
index 00000000000..30d3809d104
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@loader.tsx
@@ -0,0 +1,4 @@
+import { Layout } from 'retain-exports-function-shared-group.tsx?tsr-shared=1'
+import * as React from 'react'
+const SplitLoader = () => Layout.name
+export { SplitLoader as loader }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@shared.tsx
new file mode 100644
index 00000000000..1d79a2edaf1
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/retain-exports-function-shared-group@shared.tsx
@@ -0,0 +1,10 @@
+import * as React from 'react'
+import { Outlet } from '@tanstack/react-router'
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+export { Layout }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads.tsx
new file mode 100644
index 00000000000..83dc596c222
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads.tsx
@@ -0,0 +1,14 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+const $$splitComponentImporter = () =>
+  import('shared-function-overloads.tsx?tsr-split=component---errorComponent---notFoundComponent---pendingComponent')
+import { lazyRouteComponent } from '@tanstack/react-router'
+const $$splitLoaderImporter = () =>
+  import('shared-function-overloads.tsx?tsr-split=loader')
+import { lazyFn } from '@tanstack/react-router'
+import { createFileRoute } from '@tanstack/react-router'
+export { format as formatValue }
+export const Route = createFileRoute('/overloads')({
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+  component: lazyRouteComponent($$splitComponentImporter, 'component'),
+})
+export { format } from 'shared-function-overloads.tsx?tsr-shared=1'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@component---errorComponent---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..c25822c759e
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@component---errorComponent---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,4 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+export { format as formatValue }
+const SplitComponent = () => <div>{format('label')}</div>
+export { SplitComponent as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@loader.tsx
new file mode 100644
index 00000000000..11c7f4642ee
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@loader.tsx
@@ -0,0 +1,4 @@
+import { format } from 'shared-function-overloads.tsx?tsr-shared=1'
+export { format as formatValue }
+const SplitLoader = () => format(42)
+export { SplitLoader as loader }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@shared.tsx
new file mode 100644
index 00000000000..2de16944822
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-function-overloads@shared.tsx
@@ -0,0 +1,6 @@
+function format(value: string): string
+function format(value: number): string
+function format(value: string | number) {
+  return String(value)
+}
+export { format }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime.tsx
index 944c0b8ca87..c9bb5e394a8 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime.tsx
@@ -1,4 +1,4 @@
-import { state, createState, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
+import { state, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
 const $$splitComponentImporter = () =>
   import('shared-runtime.tsx?tsr-split=component---errorComponent---notFoundComponent---pendingComponent')
 import { lazyRouteComponent } from '@tanstack/react-router'
@@ -12,9 +12,5 @@ export const Route = createFileRoute('/shared-runtime')({
   loader: lazyFn($$splitLoaderImporter, 'loader'),
   component: lazyRouteComponent($$splitComponentImporter, 'component'),
 })
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@component---errorComponent---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@component---errorComponent---notFoundComponent---pendingComponent.tsx
index 5245f6d9eb8..1bb8fee6693 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@component---errorComponent---notFoundComponent---pendingComponent.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@component---errorComponent---notFoundComponent---pendingComponent.tsx
@@ -1,14 +1,5 @@
-import {
-  state,
-  createState,
-  createSeed,
-  Labels,
-} from 'shared-runtime.tsx?tsr-shared=1'
+import { state, createSeed, Labels } from 'shared-runtime.tsx?tsr-shared=1'
 const label = createComponentLabel()
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 function createComponentLabel() {
   console.log('shared-runtime:component')
   return Labels.component
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@loader.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@loader.tsx
index 6c0c88cab72..693fbae22ff 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@loader.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@loader.tsx
@@ -1,13 +1,4 @@
-import {
-  state,
-  createState,
-  createSeed,
-  increment,
-} from 'shared-runtime.tsx?tsr-shared=1'
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
+import { state, createSeed, increment } from 'shared-runtime.tsx?tsr-shared=1'
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
 const SplitLoader = () => {
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@shared.tsx
index c53a7e15682..c79c1e70bfb 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@shared.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/2-components-combined-loader-separate/shared-runtime@shared.tsx
@@ -6,6 +6,10 @@ function createSeed() {
   console.log('shared-runtime:seed')
   return { count: Count.Initial, label: Labels.component }
 }
+function createState(initialState: { count: number }): {
+  state: { count: number }
+  increment: () => number
+}
 function createState(initialState: { count: number }) {
   console.log('shared-runtime:state')
   return { state: initialState, increment: () => initialState.count++ }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias.tsx
new file mode 100644
index 00000000000..d83ed11be3a
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias.tsx
@@ -0,0 +1,17 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+function loadLayout() {
+  return { title: 'layout' }
+}
+export { Layout as View, loadLayout as load }
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: loadLayout,
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@component---loader---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@component---loader---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@errorComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@errorComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-alias@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group.tsx
new file mode 100644
index 00000000000..61164bb9af2
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group.tsx
@@ -0,0 +1,21 @@
+console.warn(
+  '[tanstack-router] These exports from "retain-exports-class-shared-group.tsx" will not be code-split and will increase your bundle size:\n- Layout\nFor the best optimization, these items should either have their export statements removed, or be imported from another location that is not a route file.',
+)
+const $$splitLoaderImporter = () =>
+  import('retain-exports-class-shared-group.tsx?tsr-split=component---loader---notFoundComponent---pendingComponent')
+import { lazyFn } from '@tanstack/react-router'
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@component---loader---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..4aa132a784b
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@component---loader---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,3 @@
+import { Layout } from 'retain-exports-class-shared-group.tsx'
+const SplitLoader = () => Layout.name
+export { SplitLoader as loader }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@errorComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class-shared-group@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class.tsx
new file mode 100644
index 00000000000..c1ce23ab537
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+export const Route = createFileRoute('/_layout')({ component: Layout })
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@component---loader---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@errorComponent.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-class@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group.tsx
new file mode 100644
index 00000000000..29531d88adb
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group.tsx
@@ -0,0 +1,19 @@
+console.warn(
+  '[tanstack-router] These exports from "retain-exports-function-shared-group.tsx" will not be code-split and will increase your bundle size:\n- Layout\nFor the best optimization, these items should either have their export statements removed, or be imported from another location that is not a route file.',
+)
+const $$splitLoaderImporter = () =>
+  import('retain-exports-function-shared-group.tsx?tsr-split=component---loader---notFoundComponent---pendingComponent')
+import { lazyFn } from '@tanstack/react-router'
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+export function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@component---loader---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..c9ca2f3d545
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@component---loader---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,4 @@
+import { Layout } from 'retain-exports-function-shared-group.tsx'
+import * as React from 'react'
+const SplitLoader = () => Layout.name
+export { SplitLoader as loader }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@errorComponent.tsx
new file mode 100644
index 00000000000..371dc658689
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@errorComponent.tsx
@@ -0,0 +1 @@
+import * as React from 'react'
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/retain-exports-function-shared-group@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads.tsx
new file mode 100644
index 00000000000..5de27802114
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads.tsx
@@ -0,0 +1,17 @@
+const $$splitComponentImporter = () =>
+  import('shared-function-overloads.tsx?tsr-split=component---loader---notFoundComponent---pendingComponent')
+import { lazyRouteComponent } from '@tanstack/react-router'
+const $$splitLoaderImporter = () =>
+  import('shared-function-overloads.tsx?tsr-split=component---loader---notFoundComponent---pendingComponent')
+import { lazyFn } from '@tanstack/react-router'
+import { createFileRoute } from '@tanstack/react-router'
+export function format(value: string): string
+export function format(value: number): string
+export function format(value: string | number) {
+  return String(value)
+}
+export { format as formatValue }
+export const Route = createFileRoute('/overloads')({
+  loader: lazyFn($$splitLoaderImporter, 'loader'),
+  component: lazyRouteComponent($$splitComponentImporter, 'component'),
+})
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@component---loader---notFoundComponent---pendingComponent.tsx
new file mode 100644
index 00000000000..1562c9026d6
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@component---loader---notFoundComponent---pendingComponent.tsx
@@ -0,0 +1,10 @@
+export function format(value: string): string
+export function format(value: number): string
+export function format(value: string | number) {
+  return String(value)
+}
+export { format as formatValue }
+const SplitLoader = () => format(42)
+export { SplitLoader as loader }
+const SplitComponent = () => <div>{format('label')}</div>
+export { SplitComponent as component }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@errorComponent.tsx
new file mode 100644
index 00000000000..538299461dc
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@errorComponent.tsx
@@ -0,0 +1,6 @@
+export function format(value: string): string
+export function format(value: number): string
+export function format(value: string | number) {
+  return String(value)
+}
+export { format as formatValue }
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-function-overloads@shared.tsx
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime.tsx
index fdc18fa37b8..84b1570f7ce 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime.tsx
@@ -1,4 +1,4 @@
-import { state, createState, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
+import { state, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
 const $$splitComponentImporter = () =>
   import('shared-runtime.tsx?tsr-split=component---loader---notFoundComponent---pendingComponent')
 import { lazyRouteComponent } from '@tanstack/react-router'
@@ -12,9 +12,5 @@ export const Route = createFileRoute('/shared-runtime')({
   loader: lazyFn($$splitLoaderImporter, 'loader'),
   component: lazyRouteComponent($$splitComponentImporter, 'component'),
 })
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@component---loader---notFoundComponent---pendingComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@component---loader---notFoundComponent---pendingComponent.tsx
index 053cf24d5aa..ec5a84579d1 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@component---loader---notFoundComponent---pendingComponent.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@component---loader---notFoundComponent---pendingComponent.tsx
@@ -1,15 +1,10 @@
 import {
   state,
-  createState,
   createSeed,
   Labels,
   increment,
 } from 'shared-runtime.tsx?tsr-shared=1'
 const label = createComponentLabel()
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
 function createComponentLabel() {
   console.log('shared-runtime:component')
   return Labels.component
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@errorComponent.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@errorComponent.tsx
index 03cacac5b39..4bfbd4ac664 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@errorComponent.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@errorComponent.tsx
@@ -1,7 +1,3 @@
-import { state, createState, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
-function createState(initialState: { count: number }): {
-  state: { count: number }
-  increment: () => number
-}
+import { state, createSeed } from 'shared-runtime.tsx?tsr-shared=1'
 export { state as firstState, state as secondState, state as 'odd-name' }
 export default createSeed
diff --git a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@shared.tsx b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@shared.tsx
index c53a7e15682..c79c1e70bfb 100644
--- a/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@shared.tsx
+++ b/packages/router-plugin/tests/code-splitter/snapshots/react/3-all-combined-errorComponent-separate/shared-runtime@shared.tsx
@@ -6,6 +6,10 @@ function createSeed() {
   console.log('shared-runtime:seed')
   return { count: Count.Initial, label: Labels.component }
 }
+function createState(initialState: { count: number }): {
+  state: { count: number }
+  increment: () => number
+}
 function createState(initialState: { count: number }) {
   console.log('shared-runtime:state')
   return { state: initialState, increment: () => initialState.count++ }
diff --git a/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-alias.tsx b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-alias.tsx
new file mode 100644
index 00000000000..195f1a03d10
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-alias.tsx
@@ -0,0 +1,21 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+
+function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+
+function loadLayout() {
+  return { title: 'layout' }
+}
+
+export { Layout as View, loadLayout as load }
+
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: loadLayout,
+})
diff --git a/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class-shared-group.tsx b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class-shared-group.tsx
new file mode 100644
index 00000000000..6a48fb3ae19
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class-shared-group.tsx
@@ -0,0 +1,17 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: () => Layout.name,
+})
diff --git a/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class.tsx b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class.tsx
new file mode 100644
index 00000000000..f7c5b2f1fa4
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-class.tsx
@@ -0,0 +1,16 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+
+export class Layout extends React.Component {
+  render() {
+    return (
+      <main>
+        <Outlet />
+      </main>
+    )
+  }
+}
+
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+})
diff --git a/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-function-shared-group.tsx b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-function-shared-group.tsx
new file mode 100644
index 00000000000..3e2b0e3d86d
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/test-files/react/retain-exports-function-shared-group.tsx
@@ -0,0 +1,15 @@
+import * as React from 'react'
+import { createFileRoute, Outlet } from '@tanstack/react-router'
+
+export function Layout() {
+  return (
+    <main>
+      <Outlet />
+    </main>
+  )
+}
+
+export const Route = createFileRoute('/_layout')({
+  component: Layout,
+  loader: () => Layout.name,
+})
diff --git a/packages/router-plugin/tests/code-splitter/test-files/react/shared-function-overloads.tsx b/packages/router-plugin/tests/code-splitter/test-files/react/shared-function-overloads.tsx
new file mode 100644
index 00000000000..ae7fdd3c730
--- /dev/null
+++ b/packages/router-plugin/tests/code-splitter/test-files/react/shared-function-overloads.tsx
@@ -0,0 +1,14 @@
+import { createFileRoute } from '@tanstack/react-router'
+
+export function format(value: string): string
+export function format(value: number): string
+export function format(value: string | number) {
+  return String(value)
+}
+
+export { format as formatValue }
+
+export const Route = createFileRoute('/overloads')({
+  loader: () => format(42),
+  component: () => <div>{format('label')}</div>,
+})
diff --git a/packages/router-utils/src/compiler-helpers.ts b/packages/router-utils/src/compiler-helpers.ts
index 5460c349141..eebba01d8f2 100644
--- a/packages/router-utils/src/compiler-helpers.ts
+++ b/packages/router-utils/src/compiler-helpers.ts
@@ -459,6 +459,17 @@ export function collectLocalBindingsFromStatement(
   }
 }
 
+/**
+ * `export { a as b } from './x'` and `export * as ns from './x'` do not create
+ * a local binding, so the binding that stands in for them is keyed by the
+ * exported name, which is unique within a module. Keying by the imported name
+ * would let two re-exports of the same name from different sources overwrite
+ * each other. The prefix keeps the key from clashing with a real identifier.
+ */
+function getReExportBindingKey(exported: string): string {
+  return `re-export:${exported}`
+}
+
 export function extractModuleInfoFromAst(ast: t.File): ExtractedModuleInfo {
   const bindings = new Map<string, ModuleInfoBinding>()
   const exportMap = new Map<string, string>()
@@ -507,27 +518,29 @@ export function extractModuleInfoFromAst(ast: t.File): ExtractedModuleInfo {
       }
 
       for (const specifier of node.specifiers) {
-        if (t.isExportNamespaceSpecifier(specifier)) {
+        if (t.isExportNamespaceSpecifier(specifier) && node.source) {
           const exported = getModuleExportName(specifier.exported)
-          exportMap.set(exported, exported)
-          if (node.source) {
-            bindings.set(exported, {
-              type: 'import',
-              source: node.source.value,
-              importedName: '*',
-            })
-          }
+          const key = getReExportBindingKey(exported)
+          bindings.set(key, {
+            type: 'import',
+            source: node.source.value,
+            importedName: '*',
+          })
+          exportMap.set(exported, key)
         } else if (t.isExportSpecifier(specifier)) {
           const local = getModuleExportName(specifier.local)
           const exported = getModuleExportName(specifier.exported)
-          exportMap.set(exported, local)
 
           if (node.source) {
-            bindings.set(local, {
+            const key = getReExportBindingKey(exported)
+            bindings.set(key, {
               type: 'import',
               source: node.source.value,
               importedName: local,
             })
+            exportMap.set(exported, key)
+          } else {
+            exportMap.set(exported, local)
           }
         }
       }
@@ -836,7 +849,13 @@ export function retainModuleLevelDeclarations(
       return declaration.declarations.length > 0
     }
 
-    if (t.isFunctionDeclaration(declaration) && declaration.id) {
+    // Overload signatures travel with the function they describe, so that
+    // the shared module exports the same signature set as the source.
+    if (
+      (t.isFunctionDeclaration(declaration) ||
+        t.isTSDeclareFunction(declaration)) &&
+      declaration.id
+    ) {
       return bindingsToKeep.has(declaration.id.name)
     }
 
diff --git a/packages/router-utils/tests/compiler-helpers.test.ts b/packages/router-utils/tests/compiler-helpers.test.ts
index 00b75d67e51..cd6d2ba956d 100644
--- a/packages/router-utils/tests/compiler-helpers.test.ts
+++ b/packages/router-utils/tests/compiler-helpers.test.ts
@@ -218,7 +218,7 @@ describe('extractModuleInfoFromAst', () => {
             "pkg-ns:*",
           ],
           [
-            "remote",
+            "re-export:renamed",
             "./remote:remote",
           ],
         ],
@@ -237,7 +237,7 @@ describe('extractModuleInfoFromAst', () => {
           ],
           [
             "renamed",
-            "remote",
+            "re-export:renamed",
           ],
         ],
         "reExportAllSources": [
@@ -246,4 +246,98 @@ describe('extractModuleInfoFromAst', () => {
       }
     `)
   })
+
+  test('keeps re-exports of the same name from different sources apart', () => {
+    expect(
+      collectModuleInfoSnapshot(`
+        export { wrap as allowed } from './server'
+        export { wrap as denied } from './client'
+        export { default as ServerPage } from './server-page'
+        export { default as ClientPage } from './client-page'
+        export * as helpers from './helpers'
+      `),
+    ).toMatchInlineSnapshot(`
+      {
+        "bindings": [
+          [
+            "re-export:ClientPage",
+            "./client-page:default",
+          ],
+          [
+            "re-export:ServerPage",
+            "./server-page:default",
+          ],
+          [
+            "re-export:allowed",
+            "./server:wrap",
+          ],
+          [
+            "re-export:denied",
+            "./client:wrap",
+          ],
+          [
+            "re-export:helpers",
+            "./helpers:*",
+          ],
+        ],
+        "exports": [
+          [
+            "ClientPage",
+            "re-export:ClientPage",
+          ],
+          [
+            "ServerPage",
+            "re-export:ServerPage",
+          ],
+          [
+            "allowed",
+            "re-export:allowed",
+          ],
+          [
+            "denied",
+            "re-export:denied",
+          ],
+          [
+            "helpers",
+            "re-export:helpers",
+          ],
+        ],
+        "reExportAllSources": [],
+      }
+    `)
+  })
+
+  test('does not let a re-export shadow a local binding of the same name', () => {
+    expect(
+      collectModuleInfoSnapshot(`
+        const allowed = 1
+        export { wrap as allowed } from './server'
+        export { allowed as local }
+      `),
+    ).toMatchInlineSnapshot(`
+      {
+        "bindings": [
+          [
+            "allowed",
+            "NumericLiteral",
+          ],
+          [
+            "re-export:allowed",
+            "./server:wrap",
+          ],
+        ],
+        "exports": [
+          [
+            "allowed",
+            "re-export:allowed",
+          ],
+          [
+            "local",
+            "allowed",
+          ],
+        ],
+        "reExportAllSources": [],
+      }
+    `)
+  })
 })
diff --git a/packages/start-plugin-core/tests/compiler.test.ts b/packages/start-plugin-core/tests/compiler.test.ts
index 68e193204fc..67502dad802 100644
--- a/packages/start-plugin-core/tests/compiler.test.ts
+++ b/packages/start-plugin-core/tests/compiler.test.ts
@@ -1136,6 +1136,58 @@ describe('re-export chain resolution', () => {
     expect(result).toBeNull()
   })
 
+  test('keeps re-exports apart when they share an imported name', async () => {
+    // Two modules each re-export a different factory under the same name.
+    // A barrel re-exports both under distinct aliases, so the aliases must
+    // resolve to their own sources instead of collapsing onto one of them.
+    const virtualModules: Record<string, string> = {
+      './server': `
+        export { createServerOnlyFn as wrap } from '@tanstack/start-fn-stubs'
+      `,
+      './client': `
+        export { createClientOnlyFn as wrap } from '@tanstack/start-fn-stubs'
+      `,
+      './barrel': `
+        export { wrap as allowed } from './server'
+        export { wrap as denied } from './client'
+      `,
+    }
+
+    const compiler: StartCompiler = new StartCompiler({
+      env: 'server',
+      envName: 'ssr',
+      root: '/test',
+      framework: 'react' as const,
+      providerEnvName: 'ssr',
+      lookupKinds: new Set(['ServerOnlyFn', 'ClientOnlyFn']),
+      lookupConfigurations: [],
+      getKnownServerFns: () => ({}),
+      loadModule: async (id) => {
+        const code = virtualModules[id]
+        if (code) {
+          compiler.ingestModule({ code, id })
+        }
+      },
+      resolveId: async (id) => {
+        return virtualModules[id] ? id : null
+      },
+    })
+
+    const result = await compiler.compile({
+      id: 'distinct-alias-test.ts',
+      code: `
+        import { allowed, denied } from './barrel'
+        export const a = allowed(() => 'server-value')
+        export const b = denied(() => 'client-value')
+      `,
+    })
+
+    expect(result).not.toBeNull()
+    expect(result!.code).toContain('server-value')
+    expect(result!.code).toContain('throw new Error')
+    expect(result!.code).not.toContain('client-value')
+  })
+
   test('ingestModule populates module metadata for later resolution', async () => {
     const compiler: StartCompiler = new StartCompiler({
       env: 'server',